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My last trip I did 21.3MPG, which is around what I usually get on the highway. This was with my new BC 272 cams and huge FMIC with a closed loop AFR of about 10.6:1 (about 16:1 gas AFR). Speed ranged from 63 - 70 mph the majority of the time depending on various speed limits (60's most often).
Back when I was in fwd mode (trans issues), and SMIC and stock cams, I was getting up to 20 in town, and 22 mixed hwy with some town. This was because I couldn't get on the throttle until 3rd gear (even 3rd gear it spun). At the time I was running 11.7:1 AFR (about 17.55:1 gas AFR)
Back when I was running gas, stock 14.7:1, and AFC tuning, the best I got was 25 point something on the highway. I usually got about 18-20 in town.
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